Listen Up: Combining Solar and Storage for Commercial Buildings

Homes are billed for electricity based on the amount of energy they consume (measured in kwh). But commercial facilities often get an additional charge for the peak amount of power they consume during each month (measured in kw). These demand charges are designed to compensate the utility for the peak generating capacity that they must provide when large motors, air conditioners and other commercial processes are started up (power draw from motors is highest when the motors start).